WO2008060338A3 - Aircraft landing gear with integrated extension, retraction, and leveling feature - Google Patents

Aircraft landing gear with integrated extension, retraction, and leveling feature Download PDF

Info

Publication number
WO2008060338A3
WO2008060338A3 PCT/US2007/014563 US2007014563W WO2008060338A3 WO 2008060338 A3 WO2008060338 A3 WO 2008060338A3 US 2007014563 W US2007014563 W US 2007014563W WO 2008060338 A3 WO2008060338 A3 WO 2008060338A3
Authority
WO
WIPO (PCT)
Prior art keywords
landing gear
retraction
aircraft landing
integrated extension
leveling feature
Prior art date
Application number
PCT/US2007/014563
Other languages
French (fr)
Other versions
WO2008060338A4 (en
WO2008060338A2 (en
WO2008060338A9 (en
Inventor
William Martin Waide
Original Assignee
Karem Aircraft Inc
William Martin Waide
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karem Aircraft Inc, William Martin Waide filed Critical Karem Aircraft Inc
Publication of WO2008060338A2 publication Critical patent/WO2008060338A2/en
Publication of WO2008060338A9 publication Critical patent/WO2008060338A9/en
Publication of WO2008060338A3 publication Critical patent/WO2008060338A3/en
Publication of WO2008060338A4 publication Critical patent/WO2008060338A4/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/14—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like fore-and-aft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
    • B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
    • B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
    • B64C29/0033—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being tiltable relative to the fuselage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/001—Devices not provided for in the groups B64C25/02 - B64C25/68
    • B64C2025/008—Comprising means for modifying their length, e.g. for kneeling, for jumping, or for leveling the aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/12—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like sideways
    • B64C2025/125—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like sideways into the fuselage, e.g. main landing gear pivotally retracting into or extending out of the fuselage

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vibration Prevention Devices (AREA)
  • Gear Transmission (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Electrically controlled and/or actuated landing gear mechanisms are presented that allow for adjustment of aircraft attitude on the ground as well as for retraction and extension of the landing gear in a single unit. Most preferably, the electric actuator is positioned within the diameter of the strut to thereby form a compact and load bearing structure.
PCT/US2007/014563 2006-06-23 2007-06-22 Aircraft landing gear with integrated extension, retraction, and leveling feature WO2008060338A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/473,977 US7942366B2 (en) 2005-06-23 2006-06-23 Aircraft landing gear with integrated extension, retraction, and leveling feature
US11/473,977 2006-06-23

Publications (4)

Publication Number Publication Date
WO2008060338A2 WO2008060338A2 (en) 2008-05-22
WO2008060338A9 WO2008060338A9 (en) 2008-08-14
WO2008060338A3 true WO2008060338A3 (en) 2008-11-27
WO2008060338A4 WO2008060338A4 (en) 2009-01-08

Family

ID=39402160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/014563 WO2008060338A2 (en) 2006-06-23 2007-06-22 Aircraft landing gear with integrated extension, retraction, and leveling feature

Country Status (2)

Country Link
US (1) US7942366B2 (en)
WO (1) WO2008060338A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7731125B2 (en) * 2008-03-06 2010-06-08 Abe Karem Compact stowage of transport aircraft
FR2959483B1 (en) * 2010-04-28 2012-06-01 Messier Bugatti METHOD FOR MANAGING A FLOOR LINK OF AN AIRCRAFT
US9731823B2 (en) 2011-02-18 2017-08-15 Airbus Operations (S.A.S.) Center pedestal for aircraft cockpit and aircraft comprising such a pedestal
EP2554474A1 (en) * 2011-08-05 2013-02-06 EADS Construcciones Aeronauticas, S.A. Shock absorbers
US9272775B2 (en) * 2011-09-30 2016-03-01 Airbus Operations (S.A.S.) Compact improved aircraft landing gear
US9308988B2 (en) * 2013-01-16 2016-04-12 Otto Aviation Group Aircraft main landing gear and method of operating the same
US10549848B2 (en) 2017-04-26 2020-02-04 Safran Landing Systems Canada Inc. Deployable and retractable shock strut
US11649041B2 (en) * 2020-07-21 2023-05-16 Safran Landing Systems Methods for stable extension of landing gear systems
CN112441220B (en) * 2020-12-04 2022-06-14 中航飞机起落架有限责任公司 Rotating drum connecting structure and fixing method
CN113291460B (en) * 2021-06-02 2022-11-11 南京航空航天大学 Short-distance/vertical take-off and landing aircraft adopting variant landing gear
CN114212246B (en) * 2022-01-19 2023-12-22 国网甘肃省电力公司张掖供电公司 Unpowered self-adaptive landing gear for unmanned aerial vehicle
FR3143003A1 (en) 2022-12-08 2024-06-14 Airbus Helicopters Retractable arm lander fitted with an electric motor and aircraft fitted with at least one such lander

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015920A (en) * 1934-07-03 1935-10-01 Boeing Co Retractable landing gear
US2165465A (en) * 1935-11-14 1939-07-11 Paul G Ehrhardt Retractable alighting gear for airplanes
US2387713A (en) * 1944-06-27 1945-10-30 Gen Motors Corp Actuator
US2459982A (en) * 1944-12-13 1949-01-25 Boeing Co Retractable shock absorbing strut
US3131891A (en) * 1961-08-08 1964-05-05 Hispano Suiza Lallemant Soc Retractable undercarriage for airplanes
US20070057118A1 (en) * 2005-04-22 2007-03-15 Claude Bietenhader Rotary wing aircraft and a carrier structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526053A (en) * 1983-02-14 1985-07-02 Millipore Corporation Stabilized apparatus for converting rotational motion to linear motion
US6349901B1 (en) * 2000-08-30 2002-02-26 Northrop Grumman Corporation Landing gear

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015920A (en) * 1934-07-03 1935-10-01 Boeing Co Retractable landing gear
US2165465A (en) * 1935-11-14 1939-07-11 Paul G Ehrhardt Retractable alighting gear for airplanes
US2387713A (en) * 1944-06-27 1945-10-30 Gen Motors Corp Actuator
US2459982A (en) * 1944-12-13 1949-01-25 Boeing Co Retractable shock absorbing strut
US3131891A (en) * 1961-08-08 1964-05-05 Hispano Suiza Lallemant Soc Retractable undercarriage for airplanes
US20070057118A1 (en) * 2005-04-22 2007-03-15 Claude Bietenhader Rotary wing aircraft and a carrier structure

Also Published As

Publication number Publication date
WO2008060338A4 (en) 2009-01-08
US20070205326A1 (en) 2007-09-06
WO2008060338A2 (en) 2008-05-22
US7942366B2 (en) 2011-05-17
WO2008060338A9 (en) 2008-08-14

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